Pneumatic cleaner.



E. M. BARNES.

PNEUMATIC CLEANER. Y

APPLIUATION FILED JAN. 16, 1911.

Patented Dec. 17, 1912.

2 SHEETS-SHEET 1.

' ,Ezarenvi 03 Zone 634$ E. M. BARNES.

PNEUMATIG CLEANER.

' APPLICATION FILED JAN. 16, 1911.

' Patented Dec. 1'7, 1912.

2 SHEETS-SHEET 2.

,UNITED STATES PATENT OFFICE.

EDWARD M. BARNES, or CLEVELAND, onro, Assreivon TO THE MERCANTILE SUPPLY COMPANY, or CLEVELAND, onro, A CORPORATION or OHIO.

=PNEUMATIC CLEANER.

Specification of Letters Patent.

- Patented Dec. 1'7, 1912.

To all whom it may concern:

Be it known that I, EDWARD M. BARNES, a

citizen of the United States of America, re-

siding at Cleveland, in the county of Guyahoga and State of Ohio, have invented cer-.

tain new and useful Improvements in Pneumatic Cleaners; and I hereby declare the following to be a full, clear, and exact.de-

scription of the invention, such as will enable others skilledin the art to which it pertains to make and use the same.

This invention relates to new and useful improvements in pneumatic cleaners.

One object of this invention is to provide a pneumatic cleaner which will be very compact, light and portable so that it can be readily used for cleaning carpets, rugs, draperies, curtains and the like.

A further object of my invention is to provide in a. device of this character means for producing a strong suction with slight expenditure of energy so that the device may be operated at a very small cost.

A further object of my invention is to provide a pneumatic cleaner which will be very simple in construction and which can be readily taken apart 1f.repa1rs are neces- Figure 1 is a top plan of my pneumatic cleaner. Fig. 2 is a view showing part of the device in elevation and the remainder corresponding to a section on line 2.-2, Fig. 1. Fig. 3 is a bottom plan. Fig. 4 is a section on line 4-4, Fig. 2.

In the accompanying drawings 10 represents the hollow base or nozzle of'the device, the upper portion of which is circular in cross section and the lower portion or mouth is annular 'in cross section, as shown at 11, so thatfa recess 12 is formed in the bottom of the nozzle. The mouth of thenozzle has a number of hollow extensions or ofisets 14 and where the nozzle with its oflsets comes in contact with the surface which is to be cleaned it is provided with a number of intake openings I5.

i In the recess 12inthe bottom of the nozzle is. arranged a brush 16, the brush being supported by means of a screw-threaded stud in the ac- 17, one end of which is screwed into the bottom of the nozzle and the other end is screwed into a plate 18 on the brush.

tween the bottom of the nozzle and the plate 18 is arranged a coil spring 19. The object of this arrangement is as follows :-When it is necessary to adjust the brush so that it will exert a greater or less friction on the surface over which the device is being moved: the brush is screwed up or down on the stud 17 and the tension of the spring 19 will hold the brush against further movenut.

On the nozzle portion is mounted the main body portion 21 which is providedwith a dome shaped ca or cover 22. In the lower part of the ho y portion is formed, a suction chamber 23 and above the suction chamber but separated therefrom by a partition 25 is arranged the motor chamber 26. The suction chamber is in direct communication with the nozzle through openings 27 and 28 formed in the top of the nozzle and in the bottom of the suction chamber, respectively. The suction chamber is also provided with a dust outlet 30. In the motor chamber- 26 is mounted a motor 31, preferably an electric motor, pro vided with a ;vertical shaft 32, the upper .end of which is supported in a bearing at the top of the cover22 and the lower end thereof extends down through the partition 25 into the suctipn chamber 23.

On the lower end of the shaft .32, within the suction chamber 23 is mounted a suction device or fan which consists of two horizontally arranged circular plates 34 and, 35 which are spaced a distance apart. In the upper plate 34 at the center thereof is secured an interiorly screw-threaded thimble 36 which receives the end of the motor shaft 32. In the lower plate 35 is formed an opening 37 which is the same size as the opening in the bottom of the suction chamber. Between the said plates 34 and 35 are arranged vertical blades 38 which extend from the edge of the opening 37 in the plate 35 outwardly to the perimeters of saidplates.

On the outer surface of the body portion \21 is secured a small bracket 40, and tothis bracket is pivotally secured a tubular handle 41. I v

The electric wires 42 which supply the ment, the spring taking the place of a lock I Around the screw-threaded stud 17, be-

current to the motor are secured in the usual way to the terminals ofv the motor and are then carried up through the handle 41 and out through the end thereof. Ihe wires 42 are made sufiiciently long to permit of the free movement of the device after the free ends thereof have been attached to a.lamp socket or other suitable electric connection.

The operation of the device is asfollows :The device is placed with the nozzle resting on or against the surface which is to be cleaned and the motor is then started rotating the -suction fan. The device is then moved back and forth over the surface which is to be cleaned and as the fan is located immediately over the nozzle a very strong suction is produced which draws all the dust and' dirt through the openings in the nozzle and then up into the suction chamber where it is expelled through the outlet opening of the suction chamber and deposited in the dust receptacle. W'liile the device is being operated the brush will come in contact with the surface which is being cleaned and will assist in loosening the dirt so that itwill be readily drawn into the nozzle.

It will therefore be seen that I have provided a pneumatic cleaner which consists of a very few parts and is very compa t and light, making it particularly adapte for use in private homes, and the provision of the extensions on the nozzle enables the corners of a room to be thoroughly cleaned as these extensions will reach into the corners and suck up all the dust and dirt therefrom. What I claim is, r 1. In a pneumatic cleaner, the combination of a cylindrical body portion forming a suction chamben and having in the bottom thereof a circular opening, an annular nozzle extending downwardly from said body portion and communicating with said circular opening, and arranged to come in contact with the surface over which the cleaner is moved, a fanmounted in said suction chamber and means for driving said fan.

2. In a pneumatic cleaner, the combination of a hollow nozzle-forming base portion provided with openings in the portion thereof which comes in contact with the surface which is to be cleaned, said base portion being also provided with a centrally arranged recess extending upwardly from the bottom thereof, avbrush mounted in said recess, a

suction chamber arranged directly above said base portion and communicating therewith, said chamber having a dust outlet, a dust receptacle connected to the outlet of said suction chamber, a fan arranged in said suction chamber and a motor operatively connected to said fan. i

3. In a pneumatic cleaner, the combination of a hollow nozzle-forming base portion provided with openings in the portion there of which comes in contact with the surface which is to be cleaned, said base portion be ing also provided with a centrally arranged recess extending upwardly from the bottom thereof, a screw-threaded stud secured in the bottom of the base in said recess, a brush arranged in said recess and provided with a screw-threaded attachment adapted to 'engage sa1d stud, a coil spring arranged ber tween saidbrush and the bottom of said base portion, a suction chamber arranged directly above said base portion and communicating therewith, said chamber having a dust outlet, a dust receptacle connected to the outlet of said suction chamber, a fan arranged in said suction chamber and a motor operatively connected to said fan.

4,. In a pneumatic cleaner, the combination of a cylindrical body portion provided with adust outlet, an annular nozzle communicating with and forming the base of said body portion, hollow projections extending outwardly from said annular nozzle and communicating with the interior of said nozzle, a fan mounted in said body portion so as to create a suction through said nozzle, means for driving said fan and means for propelling the cleaner over the surface which is to be cleaned.

In testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

I EDWARD M. BARNES. Witnesses:

VIo'roR C. LYNCH, N. L. MODONN'ELL. 

